/*
 * MathX — Онлайн платформа
 * Подключение: functions.php → wp_enqueue_style('mathx-style', ...)
 * Совместимость: WordPress 6.x + Masteriyo LMS
 */

/* ============================================================
   GOOGLE FONTS (подключи в functions.php через wp_enqueue_style)
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700;900&family=DM+Sans:wght@300;400;500;600&display=swap');

/* ============================================================
   CSS VARIABLES
   ============================================================ */
:root {
  --mx-navy:        #0B1D3A;
  --mx-navy-light:  #112347;
  --mx-navy-deep:   #060f1e;
  --mx-crimson:     #800020;
  --mx-crimson-alt: #a0002a;
  --mx-crimson-glow:rgba(128,0,32,0.35);
  --mx-white:       #ffffff;
  --mx-white-dim:   rgba(255,255,255,0.68);
  --mx-white-faint: rgba(255,255,255,0.07);
  --mx-hairline:    rgba(255,255,255,0.11);
  --mx-ease:        cubic-bezier(0.32,0.72,0,1);
  --mx-ease-out:    cubic-bezier(0.22,1,0.36,1);
  --mx-font-disp:   'Playfair Display', Georgia, serif;
  --mx-font-body:   'DM Sans', system-ui, sans-serif;
}

/* ============================================================
   RESET (только внутри .mathx-* классов)
   ============================================================ */
.mathx-page *,
.mathx-page *::before,
.mathx-page *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.mathx-page {
  font-family: var(--mx-font-body);
  background: var(--mx-navy-deep);
  color: var(--mx-white);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Noise grain — фиксированный псевдоэлемент на body (добавляется через JS) */
.mathx-grain {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.mathx-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 0 1.5rem;
}

.mathx-nav-island {
  max-width: 1200px;
  margin: 1.25rem auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(11,29,58,0.55);
  border: 1px solid var(--mx-hairline);
  border-radius: 999px;
  padding: 0.55rem 0.55rem 0.55rem 1.4rem;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transition: all 0.5s var(--mx-ease);
}

.mathx-header.scrolled .mathx-nav-island {
  margin-top: 0.6rem;
  background: rgba(6,15,30,0.88);
  border-color: rgba(128,0,32,0.28);
}

/* Logo */
.mathx-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.mathx-logo-mark {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--mx-crimson), #c0003a);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mx-font-disp);
  font-weight: 900;
  font-size: 0.95rem;
  color: white;
  flex-shrink: 0;
}

.mathx-logo-text {
  font-family: var(--mx-font-disp);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--mx-white);
  letter-spacing: -0.02em;
}

/* Nav right */
.mathx-nav-right {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.mathx-nav-insta {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--mx-white-dim);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 500;
  transition: color 0.3s;
}
.mathx-nav-insta:hover { color: var(--mx-white); }

/* CTA Button (Кіру / Жеке кабинет) */
.mathx-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--mx-crimson);
  color: white;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  transition: all 0.4s var(--mx-ease);
  letter-spacing: 0.01em;
}
.mathx-nav-cta:hover {
  background: var(--mx-crimson-alt);
  transform: scale(1.03);
  color: white;
}

/* Hamburger */
.mathx-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.45rem;
  background: none;
  border: none;
}
.mathx-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--mx-white);
  border-radius: 2px;
  transition: all 0.4s var(--mx-ease);
  transform-origin: center;
}
.mathx-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mathx-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.mathx-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu overlay */
.mathx-mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 190;
  background: rgba(6,15,30,0.96);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}
.mathx-mobile-menu.open { display: flex; }
.mathx-mobile-menu a {
  font-family: var(--mx-font-disp);
  font-size: 1.8rem;
  color: var(--mx-white);
  text-decoration: none;
  opacity: 0;
  transform: translateY(18px);
  animation: mxMenuIn 0.5s var(--mx-ease-out) forwards;
}
.mathx-mobile-menu a:nth-child(1){animation-delay:0.04s}
.mathx-mobile-menu a:nth-child(2){animation-delay:0.09s}
.mathx-mobile-menu a:nth-child(3){animation-delay:0.14s}
.mathx-mobile-menu a:nth-child(4){animation-delay:0.19s}
@keyframes mxMenuIn { to { opacity:1; transform:translateY(0); } }

/* ============================================================
   HERO
   ============================================================ */
.mathx-hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 1.5rem 6rem;
}

.mathx-hero-bg { position: absolute; inset: 0; z-index: 0; }

.mathx-hero-orb-1 {
  position: absolute;
  top: -10%; right: -5%;
  width: 55vw; height: 55vw;
  max-width: 650px; max-height: 650px;
  background: radial-gradient(circle, rgba(128,0,32,0.22) 0%, transparent 70%);
  border-radius: 50%;
  animation: mxOrbFloat 8s ease-in-out infinite;
}
.mathx-hero-orb-2 {
  position: absolute;
  bottom: -20%; left: -10%;
  width: 50vw; height: 50vw;
  max-width: 580px; max-height: 580px;
  background: radial-gradient(circle, rgba(11,29,58,0.7) 0%, rgba(17,35,71,0.35) 50%, transparent 70%);
  border-radius: 50%;
  animation: mxOrbFloat 10s ease-in-out infinite reverse;
}
.mathx-hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}
@keyframes mxOrbFloat {
  0%,100%{transform:translateY(0) scale(1)}
  50%{transform:translateY(-28px) scale(1.04)}
}

.mathx-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  text-align: center;
}

.mathx-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(128,0,32,0.14);
  border: 1px solid rgba(128,0,32,0.38);
  border-radius: 999px;
  padding: 0.32rem 0.9rem 0.32rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,145,145,0.88);
  margin-bottom: 1.75rem;
}
.mathx-badge-dot {
  width: 6px; height: 6px;
  background: var(--mx-crimson);
  border-radius: 50%;
  animation: mxPulse 2s ease-in-out infinite;
}
@keyframes mxPulse {
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:0.45;transform:scale(0.75)}
}

.mathx-hero-title {
  font-family: var(--mx-font-disp);
  font-size: clamp(2.6rem, 6.5vw, 5rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin-bottom: 1.4rem;
  color: var(--mx-white);
}
.mathx-hero-title .tx-outline {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255,255,255,0.38);
}
.mathx-hero-title .tx-red { color: #e04060; }

.mathx-hero-sub {
  font-size: clamp(0.95rem, 2.2vw, 1.15rem);
  color: var(--mx-white-dim);
  max-width: 540px;
  margin: 0 auto 2.25rem;
  font-weight: 300;
}

/* CTA hero button */
.mathx-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  background: var(--mx-crimson);
  color: white;
  text-decoration: none;
  font-size: 0.98rem;
  font-weight: 600;
  padding: 0.8rem 0.9rem 0.8rem 1.65rem;
  border-radius: 999px;
  transition: all 0.5s var(--mx-ease);
  box-shadow: 0 0 38px rgba(128,0,32,0.38);
  border: none;
  cursor: pointer;
}
.mathx-hero-cta:hover {
  transform: scale(1.04);
  box-shadow: 0 0 55px rgba(128,0,32,0.56);
  background: var(--mx-crimson-alt);
  color: white;
}
.mathx-cta-icon {
  width: 34px; height: 34px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.95rem;
  transition: transform 0.4s var(--mx-ease);
}
.mathx-hero-cta:hover .mathx-cta-icon { transform: translateX(2px) translateY(-1px) scale(1.1); }

/* Stats row */
.mathx-hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.25rem;
  margin-top: 3.5rem;
  flex-wrap: wrap;
}
.mathx-stat-num {
  font-family: var(--mx-font-disp);
  font-size: 1.9rem;
  font-weight: 700;
}
.mathx-stat-label {
  font-size: 0.72rem;
  color: var(--mx-white-dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.mathx-stat-div {
  width: 1px; height: 38px;
  background: var(--mx-hairline);
}

/* ============================================================
   SECTIONS BASE
   ============================================================ */
.mathx-section {
  padding: 6.5rem 1.5rem;
}

.mathx-container {
  max-width: 1200px;
  margin: 0 auto;
}

.mathx-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(128,0,32,0.11);
  border: 1px solid rgba(128,0,32,0.28);
  border-radius: 999px;
  padding: 0.28rem 0.85rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,125,125,0.82);
  margin-bottom: 1.1rem;
}

.mathx-section-title {
  font-family: var(--mx-font-disp);
  font-size: clamp(1.9rem, 3.5vw, 2.85rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--mx-white);
  margin-bottom: 0.9rem;
}

/* ============================================================
   ABOUT COURSE
   ============================================================ */
.mathx-about { background: linear-gradient(180deg, var(--mx-navy-deep) 0%, var(--mx-navy) 100%); position: relative; overflow: hidden; }
.mathx-about::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(128,0,32,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.mathx-about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4.5rem;
  align-items: center;
}

.mathx-about-text p {
  color: var(--mx-white-dim);
  font-size: 1rem;
  line-height: 1.82;
  margin-bottom: 1.25rem;
}

.mathx-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
  margin-top: 2.25rem;
}

.mathx-feature-card {
  background: var(--mx-white-faint);
  border: 1px solid var(--mx-hairline);
  border-radius: 1.1rem;
  padding: 1.35rem;
  transition: all 0.5s var(--mx-ease);
  position: relative;
  overflow: hidden;
}
.mathx-feature-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(128,0,32,0.1), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}
.mathx-feature-card:hover { border-color: rgba(128,0,32,0.38); transform: translateY(-4px); }
.mathx-feature-card:hover::before { opacity: 1; }

.mathx-feature-icon { font-size: 1.4rem; margin-bottom: 0.65rem; }
.mathx-feature-name { font-weight: 600; font-size: 0.86rem; margin-bottom: 0.35rem; color: var(--mx-white); }
.mathx-feature-desc { font-size: 0.76rem; color: var(--mx-white-dim); line-height: 1.5; }

/* ============================================================
   ABOUT AUTHOR
   ============================================================ */
.mathx-author { background: var(--mx-navy); }

.mathx-author-inner {
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 4.5rem;
  align-items: center;
}

/* Double-Bezel photo */
.mathx-photo-outer {
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--mx-hairline);
  border-radius: 2rem;
  padding: 7px;
}
.mathx-photo-inner {
  border-radius: calc(2rem - 7px);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--mx-navy-light) 0%, #1a2a4a 100%);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
/* WordPress: замени <div> на <img> ниже */
.mathx-photo-inner img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.mathx-photo-placeholder {
  font-size: 5rem;
  opacity: 0.5;
}
.mathx-photo-shine {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, transparent 55%);
}

.mathx-author-name {
  font-family: var(--mx-font-disp);
  font-size: clamp(1.7rem, 2.8vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}
.mathx-author-role {
  color: #e04060;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.4rem;
  letter-spacing: 0.02em;
}
.mathx-author-text p {
  color: var(--mx-white-dim);
  line-height: 1.82;
  margin-bottom: 0.9rem;
  font-size: 0.98rem;
}
.mathx-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1.4rem;
}
.mathx-badge {
  background: var(--mx-white-faint);
  border: 1px solid var(--mx-hairline);
  border-radius: 999px;
  padding: 0.32rem 0.8rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--mx-white-dim);
}

/* ============================================================
   COURSES SECTION (Masteriyo LMS integration)
   ============================================================ */
.mathx-courses { background: linear-gradient(180deg, var(--mx-navy) 0%, var(--mx-navy-deep) 100%); }

.mathx-courses-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2.75rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.mathx-courses-sub {
  color: var(--mx-white-dim);
  max-width: 280px;
  font-size: 0.88rem;
  line-height: 1.7;
}

/* Grid — Masteriyo выводит карточки через ul.masteriyo-courses, переопределяем */
.masteriyo-courses,
.mathx-courses-grid {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 1.4rem !important;
  list-style: none !important;
  padding: 0 !important;
}

/* Masteriyo course item → Double-Bezel card */
.masteriyo-courses .masteriyo-course,
.mathx-course-card {
  background: rgba(255,255,255,0.028) !important;
  border: 1px solid var(--mx-hairline) !important;
  border-radius: 2rem !important;
  padding: 6px !important;
  transition: all 0.5s var(--mx-ease) !important;
  cursor: pointer;
  text-decoration: none;
  display: block;
}
.masteriyo-courses .masteriyo-course:hover,
.mathx-course-card:hover {
  border-color: rgba(128,0,32,0.42) !important;
  transform: translateY(-7px) !important;
  box-shadow: 0 28px 75px rgba(0,0,0,0.38), 0 0 0 1px rgba(128,0,32,0.09) !important;
}

/* Inner shell */
.masteriyo-courses .masteriyo-course > *,
.mathx-course-card-inner {
  background: linear-gradient(145deg, var(--mx-navy-light) 0%, #0d1f3a 100%);
  border-radius: calc(2rem - 6px);
  overflow: hidden;
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.055);
}

/* Masteriyo thumbnail */
.masteriyo-courses .masteriyo-course .masteriyo-course__image img,
.mathx-course-thumb img {
  width: 100%; height: 180px;
  object-fit: cover;
  display: block;
}

/* Если нет thumbnail — заглушка */
.masteriyo-courses .masteriyo-course .masteriyo-course__image,
.mathx-course-thumb {
  min-height: 160px;
  background: linear-gradient(135deg, #0d1520 0%, #1a0a15 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
  position: relative;
}

.mathx-course-thumb-glow {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(128,0,32,0.18), transparent 70%);
}

/* Course body */
.masteriyo-courses .masteriyo-course .masteriyo-course__body,
.mathx-course-body {
  padding: 1.4rem !important;
}

/* Course tag */
.mathx-course-tag {
  display: inline-block;
  background: rgba(128,0,32,0.14);
  border: 1px solid rgba(128,0,32,0.28);
  border-radius: 999px;
  padding: 0.18rem 0.65rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,125,125,0.78);
  margin-bottom: 0.7rem;
}

/* Course title */
.masteriyo-courses .masteriyo-course .masteriyo-course__title,
.mathx-course-title {
  font-family: var(--mx-font-disp) !important;
  font-size: 1.08rem !important;
  font-weight: 700 !important;
  color: var(--mx-white) !important;
  margin-bottom: 0.55rem !important;
  line-height: 1.3 !important;
  text-decoration: none !important;
}

/* Course description */
.masteriyo-courses .masteriyo-course .masteriyo-course__description,
.mathx-course-desc {
  font-size: 0.8rem !important;
  color: var(--mx-white-dim) !important;
  line-height: 1.6 !important;
  margin-bottom: 1.1rem !important;
}

/* Course meta */
.masteriyo-courses .masteriyo-course .masteriyo-course__stats,
.mathx-course-meta {
  display: flex !important;
  align-items: center !important;
  gap: 0.9rem !important;
  margin-bottom: 1.1rem !important;
  font-size: 0.72rem !important;
  color: rgba(255,255,255,0.4) !important;
}

/* Enroll / View button */
.masteriyo-courses .masteriyo-course .masteriyo-btn,
.masteriyo-courses .masteriyo-course .masteriyo-course__btn,
.masteriyo-btn-enroll,
.mathx-course-btn {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  width: 100% !important;
  background: var(--mx-white-faint) !important;
  border: 1px solid var(--mx-hairline) !important;
  border-radius: 999px !important;
  padding: 0.55rem 0.55rem 0.55rem 1.1rem !important;
  color: var(--mx-white) !important;
  font-size: 0.82rem !important;
  font-weight: 600 !important;
  cursor: pointer;
  text-decoration: none !important;
  transition: all 0.4s var(--mx-ease) !important;
}
.masteriyo-courses .masteriyo-course:hover .masteriyo-btn,
.masteriyo-courses .masteriyo-course:hover .masteriyo-course__btn,
.mathx-course-card:hover .mathx-course-btn {
  background: rgba(128,0,32,0.14) !important;
  border-color: rgba(128,0,32,0.38) !important;
}

.mathx-course-btn-icon {
  width: 28px; height: 28px;
  background: var(--mx-crimson);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  transition: transform 0.4s var(--mx-ease);
}
.mathx-course-card:hover .mathx-course-btn-icon { transform: translateX(2px) translateY(-1px) scale(1.1); }

/* ============================================================
   FOOTER
   ============================================================ */
.mathx-footer {
  background: var(--mx-navy-deep);
  border-top: 1px solid var(--mx-hairline);
  padding: 4rem 1.5rem 2rem;
}

.mathx-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 2.5rem;
}

.mathx-footer-logo-text {
  font-family: var(--mx-font-disp);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--mx-white);
  letter-spacing: -0.02em;
  display: block;
  margin: 0.7rem 0 0.9rem;
}
.mathx-footer-desc {
  color: var(--mx-white-dim);
  font-size: 0.82rem;
  line-height: 1.72;
  max-width: 250px;
}
.mathx-footer-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mx-white-dim);
  margin-bottom: 1.1rem;
}
.mathx-footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; }
.mathx-footer-links a {
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.3s;
}
.mathx-footer-links a:hover { color: var(--mx-white); }

.mathx-footer-contact {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  font-size: 0.82rem;
  margin-bottom: 0.65rem;
  transition: color 0.3s;
}
.mathx-footer-contact:hover { color: var(--mx-white); }

.mathx-footer-bottom {
  border-top: 1px solid var(--mx-hairline);
  padding-top: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}
.mathx-footer-copy {
  color: rgba(255,255,255,0.28);
  font-size: 0.75rem;
}
.mathx-footer-insta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  transition: color 0.3s;
}
.mathx-footer-insta:hover { color: var(--mx-white); }

/* ============================================================
   SCROLL REVEAL ANIMATION
   ============================================================ */
.mathx-reveal {
  opacity: 0;
  transform: translateY(36px);
  filter: blur(3px);
  transition:
    opacity 0.8s var(--mx-ease-out),
    transform 0.8s var(--mx-ease-out),
    filter 0.8s var(--mx-ease-out);
}
.mathx-reveal.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}
.mathx-reveal-d1 { transition-delay: 0.1s; }
.mathx-reveal-d2 { transition-delay: 0.2s; }
.mathx-reveal-d3 { transition-delay: 0.3s; }
.mathx-reveal-d4 { transition-delay: 0.4s; }

/* ============================================================
   MASTERIYO GLOBAL OVERRIDES
   Перебивают дефолтные стили Masteriyo
   ============================================================ */

/* Убираем лишние отступы Masteriyo на странице курса */
.masteriyo-course-list-display-view { padding: 0 !important; }

/* Кнопки Masteriyo — под стиль MathX */
.masteriyo-btn-primary {
  background: var(--mx-crimson) !important;
  border-color: var(--mx-crimson) !important;
  border-radius: 999px !important;
  font-family: var(--mx-font-body) !important;
  font-weight: 600 !important;
  transition: all 0.4s var(--mx-ease) !important;
}
.masteriyo-btn-primary:hover {
  background: var(--mx-crimson-alt) !important;
  border-color: var(--mx-crimson-alt) !important;
  transform: scale(1.02) !important;
}

/* Прогресс бар Masteriyo */
.masteriyo-progress-bar { background: var(--mx-crimson) !important; }

/* Аккордеон курса (curriculum) */
.masteriyo-course-curriculum__section-header {
  background: var(--mx-white-faint) !important;
  border: 1px solid var(--mx-hairline) !important;
  border-radius: 0.65rem !important;
  color: var(--mx-white) !important;
  font-family: var(--mx-font-body) !important;
}

/* Rating stars */
.masteriyo-rating .filled { color: #c0a020 !important; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .masteriyo-courses, .mathx-courses-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 900px) {
  .mathx-about-inner { grid-template-columns: 1fr; gap: 2.75rem; }
  .mathx-author-inner { grid-template-columns: 1fr; gap: 2.25rem; }
  .mathx-photo-outer { max-width: 270px; }
  .mathx-footer-inner { grid-template-columns: 1fr 1fr; gap: 2.25rem; }
}

@media (max-width: 640px) {
  .mathx-section { padding: 3.75rem 1.1rem; }
  .mathx-nav-insta { display: none; }
  .mathx-nav-cta { display: none; }
  .mathx-hamburger { display: flex; }
  .masteriyo-courses, .mathx-courses-grid { grid-template-columns: 1fr !important; }
  .mathx-features-grid { grid-template-columns: 1fr; }
  .mathx-footer-inner { grid-template-columns: 1fr; }
  .mathx-hero-stats { gap: 1.4rem; }
  .mathx-stat-div { height: 28px; }
  .mathx-courses-header { flex-direction: column; align-items: flex-start; }
}